Despite some reports that "Bachelor" Sean Lowe and fiancee Catherine Giudici are calling off the wedding, Catherine was all smiles and cheers on "Dancing With the Stars" Monday night (April 15), when Sean got his best score yet.Lowe and partner Peta Murgatroyd co-danced with Chelsie Hightower and Tristan MacManus on a quickstep, which is not an easy dance. But Lowe looked the best he's ever looked on the show and the judges noticed. "I have to say, up 'ti now, you've always been a bit of a lumberjack, haven't you? ... Tonight you turned into a swan, light on your feet!" says Bruno. Len added, "Last week a statue, this week a pigeon ... pigeons sit on statues. ... that's your best dance so far" and it sent Bruno into absolute hysterics, which was pretty funny. Either way, Sean and Peta earned three 8s for a 24, which puts them in fifth place, firmly...